which contribute to sexual selection by influencing variance in mating success. Studies of male contests and related traits such as horns, antlers, tusks, and spurs (58) outnumber, and many also precede, the two studies of female contests (from 1983 and 1988). In addition, the same pattern...
Why do narwhals have tusks? wildestanimal // Shutterstock Why do narwhals have tusks? These "unicorns of the sea" are actually whales with a long, spiraling tooth sticking out from their upper lip. Since most male narwhals have these tusks and most females do not, some scientists think th...
Why do narwhals have tusks? wildestanimal // Shutterstock Why do narwhals have tusks? These "unicorns of the sea" are actually whales with a long, spiraling tooth sticking out from their upper lip. Since most male narwhals have these tusks and most females do not, some scientists think th...
Wild animals such as the elephant (Loxodonta africana), the white rhinoceros (Ceratotherium simum), the zebra (Equus burcelli), and the cheetah (Acinonyx jubatus) being killed and illegally exploited for their meat and secondary products (horns, tusks, skins, furs). The same is true for pr...
Elephants are often killed because hunters want to sell their___ A.horns B.tusks C.feet D.tails 查看答案
. As Konyaks are known for headhunting, some people still wear brass skull necklace and some houses are decorated with the skulls, horns, and elephant tusks. But, do not worry, all these are from decades ago. Today, you can stay in Longwa and explore both countries at the same time....
Applegate’s heartwarming novel in verse is bravely narrated by Ruby. Applegate introduces tough and important subjects like the impact of climate change on wildlife and the lack of water/food, animal cruelty, exploitation, and poaching for precious ivory tusks. It is a page turner for readers....
Unlike tusks or horns, antlers start out as living organs encased in a layer of skin known as "velvet."Eric Kilby / Flickr But in biology, as in economics, there is no free lunch, meaning all of that sprouting comes at a cost. No matter how many berries and acorns a male...
And much to our delight, on the drive to the boma, we saw a huge elephant with well-developed tusks running in the field next to our truck! Early afternoon we climbed out of the Crater and headed for Kitashu’s boma. He is our Maasai social worker at FAME. During the week he ...
Now, this is where their tusks come in handy. Once they have located a water source, the elephant begins tochurn the groundto create hollow caverns. Then it digs as deep as several meters using its trunk. Eventually the water bubbles up, so a mother can help dig out water for an infan...